Camera having an optical finder
an optical finder and camera technology, applied in the field of cameras, can solve the problems of difficult compacting and thinning of lenses, difficult to properly house the optical system of the optical system of the optical system of the optical system of the optical system of the optical system of the optical system of the bending type of the camera body, and the inability to compact and thin the lens, etc., to achieve the effect of reducing the area of the driving plate occupied in the optical finder unit, increasing the volume (thickness ratio
Inactive Publication Date: 2008-09-11
OLYMPUS CORP
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Benefits of technology
The present invention provides a camera and optical finder that have the advantage of being thin and compact. The camera and optical finder units are assembled into one unit, making the overall body of the camera thin and easy to manufacture. The camera and optical finder have a similar shape and size, making them easy to assemble and downsize. The camera includes a picture-taking lens unit and an optical finder unit, which are both thin and compact. The camera also includes a driving mechanism that interlocks the zoom lenses of the picture-tapping lens unit and the finder optical system, allowing for a coordinated movement of the lenses. This helps to avoid wasted space and makes the camera more compact.
Problems solved by technology
However, such an optical-axis bending type picture-taking optical system is not housed in a camera body appropriately depending upon a combination with an optical finder.
It is thus likely that the camera body will be difficult to thin and downsize.
As is evident from the above, there is fear that a camera including both a picture-taking lens unit having an optical-axis bending type optical system and a zoom lens and an optical finder unit having an optical axis bending type optical system and a zoom lens can be neither compacted nor thinned.
Method used
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[0044]As shown in FIG. 1, an electronic camera body 1 incorporates a picture-taking lens unit 100 including a picture-taking optical system 105 having an optical axis 011 of incident light and an optical finder unit 200 including a finder optical system 205. The units 100 and 200 are coupled integrally as one component with a narrow space therebetween. As shown, the units 100 and 200 are located on the right side of the camera body 1 when viewed from the front of the camera body.
[0045]Referring to FIGS. 2 and 3, the picture-taking lens unit 100 includes a main mechanism A and a zoom mechanism B. The mechanism B is mounted on the mechanism A integrally as one component. The main mechanism A includes an optical-axis bending mechanism 110 and a lens barrel 120 whose light-incident end is coupled to the mechanism 110.
[0046]As illustrated in FIGS. 4A, 4B and 5, the optical-axis bending mechanism 110 includes a picture-taking lens 111, a prism 112, and a holding member 113. The holding me...
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A camera according to the present invention includes a picture-taking lens unit including a picture-taking optical system having a bending optical system which optically bends incident light and an optical finder unit including a finder optical system having a bending optical system which optically bends incident light. A pre-bending optical system and a post-bending optical system in the bending optical system of the optical finder unit are arranged adjacent to a pre-bending optical system and a post-bending optical system in the bending optical system of the picture-taking lens unit, respectively. The body of the camera is therefore decreased in size.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a divisional application of U.S. patent application Ser. No. 10 / 292,915, titled “ARRANGEMENT OF BENDING OPTICAL SYSTEMS IN A PICTURE TAKING LENS UNIT AND AN OPTICAL FINDER UNIT OF A CAMERA,” (as amended) filed on Nov. 12, 2002, which is based upon and claims the benefit of priority from the prior Japanese Patent Applications No. 2001-347817, filed Nov. 13, 2001; No. 2001-356365, filed Nov. 21, 2001; No. 2001-356366, filed Nov. 21, 2001; No. 2001-356367, filed Nov. 21, 2001; No. 2001-356368, filed Nov. 21, 2001; and No. 2001-356369, filed Nov. 21, 2001. The entire contents of each of the foregoing applications are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a camera having a picture-taking optical system and an optical finder including a finder optical system favorable for the camera.[0004]2. Description of the Related Art[0005]It is g...
Claims
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IPC IPC(8): H04N5/232G03B13/32H04N5/225G03B17/00
CPCH04N5/23293H04N23/55
Inventor FUTAMI, AKIRAKATOOKAMURA, TAKASHI
Owner OLYMPUS CORP